Steel 85

  • 70G steel
  • Steel 60S2HFA
  • Steel 60KhFA (60KhF)
  • Steel 65
  • Steel 65G (65G1)
  • Steel 65GA
  • Steel 65S2VA
  • Steel 68A
  • Steel 68GA
  • Steel 70
  • Steel 60S2HG
  • Steel 70G2
  • Steel 70S2HA (EI142)
  • Steel 70C3A
  • 70KhGFA steel
  • Steel 75
  • Steel 80
  • Steel 85
  • KT-2 steel
  • KT-3 steel
  • Steel 55S2A
  • Steel 3K-7
  • Steel 40P
  • Steel 50RA (50P)
  • 50KhG steel
  • 50KhGA steel
  • 50KhGFA steel
  • Steel 50KhFA (50KhF)
  • 51KhFA steel
  • Steel 55C2
  • Steel 60С2Х (60С2ХА; 60С2ХАA)
  • Steel 55S2GF
  • Steel 55KhGR
  • Steel 55KhFA (55KhF)
  • 60G steel
  • Steel 60C2
  • Steel 60S2A
  • Steel 60S2G
  • Steel 60C2H2A

    • Designation

    Name The value
    Designation GOST Cyrillic 85
    Designation GOST Latin 85
    Transliteration 85
    By chemical elements 85

    Description

    85 steel is used: for the manufacture of springs, friction disks and other parts, which are requirements of high strength and elastic properties and wear resistance; blades of earth-moving machinery (bulldozers, scrapers, graders and graders, as well as to the dozer and grader blades equipment excavators, rollers and other earth moving machines); springs and measuring tapes.

    Note

    Steel spring carbon.

    Standards

    Name Code Standards
    Bars and shapes В22 GOST 1133-71, GOST 17152-89, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
    Tape В34 GOST 2283-79
    Steel wire medium and high carbon В72 GOST 7348-81, GOST 9389-75, GOST 26366-84
    Bars and shapes В32 GOST 7417-75, GOST 7419-90, GOST 8559-75, GOST 8560-78, GOST 14955-77, GOST 14959-79, TU 14-1-2118-77, TU 14-11-245-88, TU 14-1-1271-75, TU 14-136-367-2008
    Sheets and strips В23 GOST 82-70, GOST 103-2006
    Sheets and strips В33 TU 14-1-1022-74, TU 14-1-1133-74, TU 14-1-2650-79, TU 14-1-466-72

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu
    GOST 17152-89 (ИСО 7129-82 0.82-0.9 ≤0.035 ≤0.035 0.5-0.8 ≤0.25 0.17-0.37 ≤0.25 Rest ≤0.2
    GOST 14959-79 0.82-0.9 ≤0.035 ≤0.035 0.5-0.8 ≤0.25 0.17-0.37 ≤0.25 Rest ≤0.2
    Fe is the basis.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % d4 y, % HB, MPa HRC
    Cold-rolled steel strip of 0.1-4.0 mm according to GOST 2283-79 on delivery
    0.1-4 - 740-1180 - - - - -
    0.1-4 - ≤740 - ≥10 - - -
    0.1-4 - ≤670 - ≥10 - - -
    Tape. Quenching in water from 1000 °C + Quenching in water from 870 °C to + Vacation at 250 °C
    ≤1 ≥1650 ≥1750 - ≥9 - - 47
    Wire. Quenching in oil from 920 °C (tмасла=40 °C, exposure for 1 min) + Vacation at 500 °C (15 min excerpt) air cooling
    ≤6.5 - ≥1540 ≥5 - ≥42 399 -
    Rolled steel. Steel categories: 3, 3A, 3B, 3C, 3D, 4, 4A, 4B. Quenching in oil from 820 °C to + Vacation at 470 °C
    ≥980 ≥1130 ≥8 - ≥30 - -

    Description mechanical marks

    Name Description
    sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
    σU Limit short-term strength
    d5 Elongation after rupture
    d4 Elongation after rupture
    y The relative narrowing
    HB Brinell hardness number
    HRC Rockwell hardness (indenter diamond spheroconical)

    Physical characteristics

    Temperature Е, HPa G, HPa
    0 191 76

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity
    a The coefficient of linear expansion

    Technological properties

    Name The value
    Weldability does not apply to welded structures.
    Склонность к отпускной хрупкости tend not
    The temperature of forging Start - 1180 °C, the end - of 800 °C. the cross Section up to 220 mm are cooled in the wells.
    Flock-sensitive sensitivity insensitive